Read e-book online Studies of Photoinduced Molecular Dynamics Using a Fast PDF

By Craig S. Slater

ISBN-10: 3319245155

ISBN-13: 9783319245157

ISBN-10: 3319245171

ISBN-13: 9783319245171

The paintings offered during this thesis comprises a couple of subtle experiments highlighting novel functions of the Pixel Imaging Mass Spectrometry (PImMS) digital camera within the box of photoinduced molecular dynamics. This procedure represents the union of a brand new permitting expertise (a a number of reminiscence check in, CMOS-based pixel detector) with numerous sleek chemical physics methods and represents an important step forward in features. functions proven contain 3-dimensional imaging of photofragment Newton spheres, simultaneous electron-ion detection utilizing a unmarried sensor, and ion-ion pace correlation measurements that open the door to novel covariance imaging experiments. while mixed with Coulomb explosion imaging, such an procedure is tested to permit the dimension of molecular constitution and movement on a femtosecond timescale. this is often illustrated throughout the managed photoexcitation of torsional movement in biphenyl molecules and the following real-time size of the torsional angle.

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Read e-book online Studies of Photoinduced Molecular Dynamics Using a Fast PDF

The paintings offered during this thesis comprises a few refined experiments highlighting novel functions of the Pixel Imaging Mass Spectrometry (PImMS) digicam within the box of photoinduced molecular dynamics. This procedure represents the union of a brand new allowing expertise (a a number of reminiscence sign up, CMOS-based pixel detector) with numerous sleek chemical physics methods and represents an important step forward in features.

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116] is restricted to only 64 × 16 pixels at a frame rate of 1 Mfps, compared to a maximum pixel resolution of 1024 × 1024 at 1 kfps. This illustrates the main drawback of parallel readout sensors: that the limited capacity of data readout necessarily requires a trade off between the pixel count and frame rate. 2 In Situ Storage Imaging Sensors An alternative to fast data readout is to store the signal in situ during acquisition, followed by a slower readout from the chip once the acquisition is complete [112, 117].

The pixel architecture is illustrated in Fig. 7, alongside a photograph of a complete PImMS1 sensor comprising an array of 72 × 72 such pixels and the associated circuitry. 9 %. The remaining area of the pixel is occupied by the necessary onboard circuitry, which blocks the transmission of light to these regions. 8 shows a schematic of the pixel circuitry, illustrating the operation of the PImMS sensor. At the start of each acquisition cycle, an internal global 12-bit timer is triggered. 5 ns. The value of zero is reserved to signify the absence of signal throughout the acquisition window.

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Studies of Photoinduced Molecular Dynamics Using a Fast Imaging Sensor by Craig S. Slater


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