Abstracts

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2024-12-11
12:28
[PUBDB-2024-07571] Abstract

Precision EWK and QCD measurements from ATLAS, CMS, LHCb
43rd International Symposium on Physics in Collision, PIC2024, AthensAthens, Greece, 22 Oct 2024 - 25 Oct 20242024-10-222024-10-25  GO
Results are presented on searches for additional Higgs bosons using the CMS Run 2 data. The searchcovers both low mass (below 125 GeV), in the diphoton and ditau channel, and higher masses in thedecays into b jets and a top pair. [...]
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2024-12-11
12:26
[PUBDB-2024-07570] Abstract

Search for additional Higgs bosons at CMS
43rd International Symposium on Physics in Collision, PIC2024, AthensAthens, Greece, 22 Oct 2024 - 25 Oct 20242024-10-222024-10-25  GO
Results are presented on searches for additional Higgs bosons using the CMS Run 2 data. The searchcovers both low mass (below 125 GeV), in the diphoton and ditau channel, and higher masses in thedecays into b jets and a top pair. [...]
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2024-11-01
13:23
[PUBDB-2024-06581] Abstract
; ; ; et al
PP14.06 Radiobiological in vitro effects of electron beam at high and low dose rates
European Congress of Medical Physics, EMCP2024, MunichMunich, Germany, 11 Sep 2024 - 14 Sep 20242024-09-112024-09-14  GO
Introduction: We developed a Monte Carlo (MC) simulation tool forestimating the absorbed dose in mice organs irradiated with kilovoltage X-ray beamlets. Here we investigated the characteristics ofcollimators for preclinical kilovoltage minibeam radiotherapy [1].Materials & Methods: We adopted gCTD, a GPU-based MC code [2,3],simulating the irradiation with a 225 kVp orthovoltage X-ray beam.Virtual planar irradiations implied interposition of a comb collimatormade of W or Pb, of various thicknesses, producing a pattern ofrectangular slits of various width (from 0.1 mm to 0.5 mm) alternatedto septa, with a fixed center-to-center spacing (ctcs) of 1 mm [...]
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2024-11-01
13:08
[PUBDB-2024-06578] Abstract
; ; ; et al
PS07.31 Commissioning of the C-Robot at the FLASHlab@PITZ experimental area
European Congress of Medical Physics, EMCP2024, MunichMunich, Germany, 11 Sep 2024 - 14 Sep 20242024-09-112024-09-14  GO
Introduction: The FLASHlab@PITZ at DESY’s Photo Injector Test facilityexplores electron FLASH radiation therapy across a wide parameterspectrum. The startup beamline includes a 60⁰ dipole, BPMs, ICT,Faraday cup, screen stations, titanium window, experimental area, andFaraday cup in air. [...]
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2024-10-28
14:23
[PUBDB-2024-06530] Abstract
; ; ; et al
PP13.11 CHARGE COLLECTION EFFICIENCY MEASUREMENTS OF A PPC05 IONIZATION CHAMBER AT ULTRA-HIGH DOSE RATE UP TO 64 GY/PULSE
European Congress of Medical Physics, EMCP2024, MunichMunich, Germany, 11 Sep 2024 - 14 Sep 20242024-09-112024-09-14 () [10.1016/j.ejmp.2024.103905]  GO
Introduction: FLASHlab@PITZ is a new R&D facility for radiationbiology studies (≤22 Mev, electrons) and is being setup at the PhotoInjector Test facility at DESY in Zeuthen (PITZ). It provides worldwideunique beam parameters regarding delivered dose and dose rate [1].With an average dose rate within one pulse of up to 109 Gy/s and peakdose rates up to 4 × 1013 Gy/s, PITZ is fully capable of ultra-high doserate experiments, for example the investigation of the FLASH effect.Furthermore, clinical dose rates of 0.05 Gy/s are also available at PITZ.Materials & Methods: Dosimetry at such high dose rates is a majorchallenge [...]
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2024-10-28
14:20
[PUBDB-2024-06529] Abstract
; ; ; et al
PP14.06 RADIOBIOLOGICAL IN VITRO EFFECTS OF ELECTRON BEAM AT HIGH AND LOW DOSE RATES
European Congress of Medical Physics, EMCP2024, MunichMunich, Germany, 11 Sep 2024 - 14 Sep 20242024-09-112024-09-14 () [10.1016/j.ejmp.2024.103914]  GO
Introduction: Ionizing irradiation of water and DNA causes reactiveoxygen species (ROS) generation and DNA damage that togetherresults in cell proliferation inhibition. Radiation treatment with ultrahigh dose rate (UHDR) leads to lower toxicity in healthy tissue keepingthe tumor therapeutic response [...]
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2024-10-28
14:18
[PUBDB-2024-06526] Abstract
; ; ; et al
PS07.31 Commissioning of the C-Robot at the FLASHlab@PITZ experimental area
European Congress of Medical Physics, EMCP2024, MunichMunich, Germany, 11 Sep 2024 - 14 Sep 20242024-09-112024-09-14 () [10.1016/j.ejmp.2024.104183]  GO
Introduction: The FLASHlab@PITZ at DESY’s Photo Injector Test facilityexplores electron FLASH radiation therapy across a wide parameterspectrum. The startup beamline includes a 60⁰ dipole, BPMs, ICT,Faraday cup, screen stations, titanium window, experimental area, andFaraday cup in air [...]
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2024-08-29
15:55
[PUBDB-2024-05647] Abstract

Status of the L-band gun development at PITZ
32nd Linear Accelerator Conference, LINAC2024, ChicagoChicago, USA, 25 Aug 2024 - 30 Aug 20242024-08-252024-08-30  GO
Gun5, the new generation of high-gradient normal conducting 1.3 GHz RF guns for linac driven free-electron lasers like FLASH and European XFEL is under development at the Photo Injector Test facility at DESY in Zeuthen (PITZ). Its improved cell geometry and cooling concept allow for RF pulse durations of up to 1 ms at 10 Hz repetition rate, at gradients of ˜60 MV/m at the cathode. [...]
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2024-04-15
15:11
[PUBDB-2024-01485] Abstract
; ; ; et al
Aberration corrected multilayer Laue lenses enable focusing to below 3 nm
16th International Conference on X-Ray Microscopy, XRM2024, LundLund, Sweden, 12 Aug 2024 - 16 Aug 20242024-08-122024-08-16  GO
Reaching the highest possible resolution is important for studying complex, hierarchical, and heterogeneous structures, for which high quality X-ray optics are pre-requisite. Multilayer Laue lenses are diffractive focusing optics, which consist of tens of thousands of layers and require about a week to deposit, usually via magnetron sputtering [...]

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2024-04-14
11:27
[PUBDB-2024-01460] Abstract
; ; ; et al
Thermal stability of multilayers for use with high X-ray intensities
16th International Conference on X-Ray Microscopy, XRM2024, LundLund, Sweden, 12 Aug 2024 - 16 Aug 20242024-08-122024-08-16  GO
Focusing X-ray free electron laser (XFEL) beams to achieve the necessary power densities for applications such as single-particle imaging or nonlinear physics demands optics with high radiation hardness and minimal absorption. Further development of XFELs towards hard X-ray photon energies challenges existing nano-focusing optics able to withstand XFEL beams [1-2].We are actively developing multilayer Laue lenses (MLLs), which are diffraction-based X-ray optics capable of focusing hard X-rays to nanometer spot sizes [3]. [...]

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